163401768 has 96 divisors (see below), whose sum is σ = 460605600. Its totient is φ = 52285824.

The previous prime is 163401727. The next prime is 163401779. The reversal of 163401768 is 867104361.

163401768 is a `hidden beast` number, since 1 + 634 + 0 + 17 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 220743 + ... + 221481.

It is an arithmetic number, because the mean of its divisors is an integer number (4797975).

Almost surely, 2^163401768 is an apocalyptic number.

163401768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163401768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230302800).

163401768 is an abundant number, since it is smaller than the sum of its proper divisors (297203832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163401768 is a wasteful number, since it uses less digits than its factorization.

163401768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871 (or 864 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 163401768 is about 12782.8701002553. The cubic root of 163401768 is about 546.7039987064.

The spelling of 163401768 in words is "one hundred sixty-three million, four hundred one thousand, seven hundred sixty-eight".